Bulletin of the National Research Council, Ausgaben 51-54National Research Council of the National Academy of Sciences, 1925 |
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Seite 13
... method are those of Ellen Gleditsch , who first reported as her best re- sults , ARa = 4.22 x 10- / yr and 4.14 × 10 ... methods depending upon the measurement of the relative num- RADIOACTIVE TRANSFORMATIONS 13.
... method are those of Ellen Gleditsch , who first reported as her best re- sults , ARa = 4.22 x 10- / yr and 4.14 × 10 ... methods depending upon the measurement of the relative num- RADIOACTIVE TRANSFORMATIONS 13.
Seite 14
Other methods depending upon the measurement of the relative num- ber of atoms of Ra ( 88Ra ) and Rn ( 86Ra ) in ... method of concentrating Ra ( 88Ra ) by fractional crystallization of radium - barium bromide . The latter process is ...
Other methods depending upon the measurement of the relative num- ber of atoms of Ra ( 88Ra ) and Rn ( 86Ra ) in ... method of concentrating Ra ( 88Ra ) by fractional crystallization of radium - barium bromide . The latter process is ...
Seite 15
... method due to Dorsey may be used to obtain the extrapolated equilibrium activity . The spectrum of Ra ( 88Ra ) has been studied by Anslow - Howell and Fues . Von Lerch has explained some anomalies in B - ray measurements which had ...
... method due to Dorsey may be used to obtain the extrapolated equilibrium activity . The spectrum of Ra ( 88Ra ) has been studied by Anslow - Howell and Fues . Von Lerch has explained some anomalies in B - ray measurements which had ...
Seite 16
... Methods of measuring Rn ( 86Ra ) content have been studied and dis- cussed in detail by Leaming - Schlundt - Underwood , Brössler , Johnstone , Bothe , Becker , 1 Lepape , and Germann . A rapid method for obtaining the natural leak of ...
... Methods of measuring Rn ( 86Ra ) content have been studied and dis- cussed in detail by Leaming - Schlundt - Underwood , Brössler , Johnstone , Bothe , Becker , 1 Lepape , and Germann . A rapid method for obtaining the natural leak of ...
Seite 28
... method is regarded by these authors as more . sensitive than any other for detecting weak radioactivity . Hoffmann , " who has used great care in the elimination of all spurious effects , finds by ionization methods that neither sodium ...
... method is regarded by these authors as more . sensitive than any other for detecting weak radioactivity . Hoffmann , " who has used great care in the elimination of all spurious effects , finds by ionization methods that neither sodium ...
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Häufige Begriffe und Wortgruppen
a-particles a-rays absorption Actinium American Geophysical Union angle angular momentum applied atomic number atomic weight average axis azimuthal quantum B-rays Bohr candidate for honors charge Chem classical computed constant contact transformation correspondence principle degree determined effect electric electron emission emitted energy equation examination experimental Faculty formula frequency Geodetic Survey Geophysical Union given grade graduation helium Honors Courses honors students hydrogen Ibid intensity ionization Junior magnetic field major department method motion National Research Council nuclear nucleus observed obtained orbits oscillators particles perturbed Phil Phys polarization precession Proc quantization quantum number quantum theory Ra 88Ra RaB 82RaI RaC 83RaI radiation radio-elements radioactive radium RaF 84RaIII range rays Rn 86Ra scattering Section semester Senior SOMMERFELD special honors spectra Stark effect theorem thorium tion variables variation velocity wave Wien X-rays y-rays